| District: | 20 |
| Chamber: | Assembly |
| Population: | 461,362[1] |
| Population Year: | 2010 |
| Voting Age: | 348,027 |
| Citizen Voting Age: | 266,963 |
| Percent White: | 25.82 |
| Percent Black: | 8.65 |
| Percent Latino: | 28.77 |
| Percent Asian: | 32.76 |
| Percent Native American: | 0.56 |
| Percent Pacific Islander: | 1.67 |
| Percent Other Race: | 0.28 |
| Percent Remainder Of Multiracial: | 1.49 |
| Registered: | 233,345 |
| Democratic: | 54.70 |
| Republican: | 13.93 |
| Npp: | 27.22 |
California's 20th State Assembly district is one of 80 California State Assembly districts. It is represented by Democrat Liz Ortega of San Leandro.
The district is located in the southern East Bay, centered on Hayward. The district is a major gateway between the Tri-Valley to the east, Silicon Valley to the south, and the rest of the San Francisco Bay Area.
Alameda County – 30.5%
| Year | Office | Results |
|---|---|---|
| 2021 | Recall | align="right" No 75.7 – 24.3% |
| 2020[2] | President | Biden 74.7 – 23.2% |
| 2018 | Governor | Newsom 74.8 – 25.2% |
| Senator | Feinstein 58.5 – 41.5% | |
| 2016 | President | Clinton 75.5 – 19.1% |
| Senator | Harris 69.1 – 30.9% | |
| 2014 | Governor | Brown 76.8 – 23.2% |
| 2012 | President | Obama 75.7 – 22.2% |
| Senator | Feinstein 78.3 – 21.7% |
Due to redistricting, the 20th district has been moved around different parts of the state. The current iteration resulted from the 2011 redistricting by the California Citizens Redistricting Commission.
| Assembly members | Party | Years served | Counties represented | Notes | |
|---|---|---|---|---|---|
| Dwight Hollister | Republican | January 5, 1885 - January 3, 1887 | Sacramento | ||
| Seymour Carr | January 3, 1887 - January 5, 1889 | ||||
| L. H. Fassett | January 5, 1889 - December 16, 1889 | Died in office.[3] | |||
| Gillis Doty | Democratic | January 5, 1891 - January 2, 1893 | |||
| William A. Anderson | Republican | January 2, 1893 - January 7, 1895 | |||
| Judson C. Brusie | January 7, 1895 - January 4, 1897 | ||||
| William M. Sims | January 4, 1897 - January 2, 1899 | ||||
| Grove L. Johnson | January 2, 1899 - January 5, 1903 | ||||
| W. S. Killingsworth | Democratic | January 5, 1903 - January 2, 1905 | Solano | ||
| Frank R. Devlin | Republican | January 2, 1905 - January 4, 1909 | |||
| John Roche Cronin | January 4, 1909 - January 6, 1913 | ||||
| Wilber C. Wall | Democratic | January 6, 1913 - January 4, 1915 | San Joaquin | ||
| Lawrence Edwards | January 4, 1915 - January 6, 1919 | ||||
| Charles Lamb | Republican | January 6, 1919 - January 6, 1920 | Died in office.[4] | ||
| Oscar C. Parkinson | January 3, 1921 - January 8, 1923 | ||||
| George A. Dean | January 8, 1923 - January 5, 1925 | ||||
| Tom H. Louttit | January 5, 1925 - January 3, 1927 | ||||
| Forsythe Charles Clowdsley | Democratic | January 3, 1927 - January 5, 1931 | |||
| Theodore McKay Wright | Republican | January 5, 1931 - January 2, 1933 | Santa Clara | ||
| Thomas A. Maloney | January 2, 1933 - January 7, 1957 | San Francisco | |||
| Phillip Burton | Democratic | January 7, 1957 - February 24, 1964 | Resigned from the Assembly after winning a special congressional election. | ||
| John Burton | January 4, 1965 - June 25, 1974 | Resigned from the Assembly after winning a special congressional election. | |||
| Dixon Arnett | Republican | December 2, 1974 - November 30, 1978 | San Mateo | ||
| Robert W. Naylor | December 4, 1978 - November 30, 1986 | ||||
| Bill Duplissea | December 1, 1986 - November 30, 1988 | ||||
| Ted Lempert | Democratic | December 5, 1988 - November 30, 1992 | |||
| Delaine Eastin | December 7, 1992 - November 30, 1994 | Alameda, Santa Clara | |||
| Liz Figueroa | December 5, 1994 - November 30, 1998 | ||||
| John A. Dutra | December 7, 1998 - November 30, 2004 | ||||
| Alberto Torrico | December 6, 2004 - November 30, 2010 | ||||
| Bob Wieckowski | December 6, 2010 - November 30, 2012 | ||||
| Bill Quirk | December 3, 2012 – Present | Alameda | |||